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Determination of test methods for the prediction of the behavior of mass concrete.

机译：确定用于预测大体积混凝土性能的测试方法。

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Hydration at early ages results from chemical and physical processes that take place between Portland cement and water, and is an exothermic process. The resultant heat evolution and temperature rise for massive concrete placements can be so great that the temperature differentials between the internal concrete core and outer concrete stratum can cause cracking due to thermal gradients. Accurate prediction of temperature distribution and stresses in mass concrete is needed to determine if a given concrete mixture design may have problems in the field, so that adjustments to the design can be made prior to its use. This research examines calorimetric, strength, and physical testing methods in an effort to predict the thermal and physical behavior of mass concrete. Four groups of concrete mixture types containing different cementitious materials are examined. One group contains Portland cement, while the other three groups incorporate large replacements of supplementary cementitious materials: granulated blast furnace slag, fly ash, and a ternary blend (combining Portland cement, fly ash, and slag).

机译：早期的水合作用是波特兰水泥与水之间发生的化学和物理过程，是放热过程。大量混凝土浇筑时产生的热量散发和温度升高可能会非常大，以至于内部混凝土芯和外部混凝土层之间的温差会由于热梯度而导致开裂。需要精确预测大体积混凝土中的温度分布和应力，以确定给定的混凝土混合料设计在现场是否存在问题，以便可以在使用前对设计进行调整。这项研究检查了量热法，强度和物理测试方法，以预测大体积混凝土的热和物理行为。检查了四组包含不同胶凝材料的混凝土混合物类型。一组包含波特兰水泥，而其他三组包含大量替代性水泥材料：高炉矿渣，粉煤灰和三元混合物（波特兰水泥，粉煤灰和炉渣的混合物）。

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作者
Ferraro, Christopher C.;
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作者单位

University of Florida.;

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授予单位 University of Florida.;
学科 Applied Mechanics.;Engineering Materials Science.;Engineering Civil.
学位 Ph.D.
年度 2009
页码 277 p.
总页数 277
原文格式 PDF
正文语种 eng
中图分类
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Determination of test methods for the prediction of the behavior of mass concrete.

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